Totally in favor of playable Jinyu/Ankoa! After all, I did make this thread :3
Still, I’m quite curious as to where you’re getting your info. Those screenshots don’t seem to imply anything like a hunched/straight back position, probably just an ankoan in the middle of an attack-ready animation.
Also, Jinyu have always used the night elf rig. Where does it look like the worgen rig is being used, or is there something I should know?